A double-lamellar five-degree-of-freedom bearingless switched reluctance motor
A technology of switched reluctance motor and degrees of freedom, applied in magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of high speed and high power density, long axial length, and high critical speed of bearingless motors that are difficult to achieve. The effect of short axial length, less driving circuit and simple control
Active Publication Date: 2020-12-08
HUAIYIN INSTITUTE OF TECHNOLOGY
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Problems solved by technology
In addition, to realize the stable suspension of the rotor with five degrees of freedom, any combination of axial single-degree-of-freedom magnetic bearings, radial two-degree-of-freedom magnetic bearings, three-degree-of-freedom radial-axial magnetic bearings, and two-degree-of-freedom bearingless switched reluctance motors must be used. The five-degree-of-freedom bearingless switched reluctance motor drive system is bulky, has a long axial length, and has a high critical speed, which makes it difficult to reflect the advantages of high speed and high power density of bearingless motor technology
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[0024] like Figures 1~5 A double-sheet type five-degree-of-freedom bearingless switched reluctance motor shown, including a stator and a rotor, the rotor is composed of a rotating shaft 5, and a left rotor core 4 and a right rotor core 6 that are connected to the rotating shaft 5 side by side at intervals. 12 rotor teeth 13 are evenly arranged on the sides of the left rotor core 4 and the right rotor core 6, and the radial length of the left rotor core 4 and the right rotor core 6 is greater than the axial thickness to form a thin sheet.
[0025] The stator includes an annular left stator core 2 and a right stator core 9. The inner ring of each stator core is evenly arranged with four suspension teeth 11, and the inner ring of the stator core between two adjacent suspension teeth 11 is evenly arranged. There are two torque teeth 16, the width of the suspension teeth 11 is greater than the width of the torque teeth 16, and the width of the suspension teeth 11 is greater than o...
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The invention discloses a double-sheet type five-degree-of-freedom bearingless switched reluctance motor, which includes a stator and a rotor. The rotor is composed of a rotating shaft and a rotor core. The side of the rotor core is provided with rotor teeth. There are two arranged side by side at intervals, the stator includes two annular stator cores, four suspension teeth are evenly arranged on the inner ring of each stator core, and several suspension teeth are evenly arranged on the inner ring of the stator core between two adjacent suspension teeth. Torque teeth, the suspension teeth and the torque teeth are respectively wound with suspension windings and torque windings; the outer rings of the two stator cores are respectively evenly connected with several magnetic bridges, which are respectively connected to the magnetic transmission bridges of the two stator cores. The bridges are connected one by one by permanent magnets; the two rotor cores are coaxially arranged in the inner cavities of the two stator cores, and the rotor teeth of each rotor core are spaced apart from the suspension teeth and torque teeth of the corresponding stator core to form Radial working air gap.
Description
technical field [0001] The invention relates to the technical field of motor manufacturing, in particular to a double-sheet type five-degree-of-freedom bearingless switched reluctance motor. Background technique [0002] Bearingless motors have no friction, wear, lubrication and sealing, and are easy to achieve higher speed and higher power operation. They have broad application prospects in aerospace, turbomolecular pumps, flywheel energy storage, sealed pumps, high-speed motorized spindles and other fields. . Bearingless motors are mainly divided into bearingless asynchronous (induction) motors, bearingless permanent magnet synchronous motors and bearingless switched reluctance motors. In particular, the bearingless switched reluctance motor has the advantages of simple structure, high mechanical strength, flexible control, good fault tolerance and robustness, and has broad application prospects in electric vehicles, aerospace, household appliances and other fields. [0...
Claims
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IPC IPC(8): H02K16/00H02K1/24H02K1/14H02K1/17
CPCH02K1/146H02K1/17H02K1/246H02K16/00H02K2201/12H02K2201/18H02K2213/03
Inventor 张涛莫丽红鲁庆丁卫红唐中一王业琴夏鑫
Owner HUAIYIN INSTITUTE OF TECHNOLOGY